Attachment for player-pianos



J. H. BATES.

, ATTACHMENT FOR PLAYER PIANOS.

APPLICATION FILED MAR. 2 9, 1920.

-1`,390,421 x Patemds-ept. 11g-i921.

UNITED STATES -Pa'risivr:` oFF-ics.

ATTACHMENT FOR PLAYER-PIANOS.

Specification of Letters Patent.

Patented Sept. 13, 1921.

Application filed March 29 1920. Serial No. 369,651.

To all whom. it may concern: y

Beit knoivnthat I, JOHN H. BATES, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have inventedv certain new and useful Improvements in Attachments for Player-Pianos, of which the following is a full, clear, and exact' description.

The invention relates to attachments for player pianos and more particularly to den vices for guiding the perforated sheet-or Web betiveen the supply and take-up rolls.

The object of the invention is to provide an attachment for this purpose which may be readily applied to and removed from the .trackerbar of a player and readily adjusted thereon.

of a portion of aplayer piano provided withY the invention. Fig. 2 is a section taken on line 2-2 of Fig. 1. Fig. 3 is a section taken on line 3 3 of FiglrQ. Fig. 4 is a perspective of a portion of the improved attachment. 4

The invention is illustrated as applied to a player piano comprising a frame 5 in which the tracker board 6 is secured, a feed- A roll 7 radially mounted in the frame and a roll 8 containing the perforated sheet or web 9 which is'v to berwound upon the roll 7 to operate the Web over the ducts in the board 6. Suitable gearing 10 serves to operate the feed roll, to Wind -up the iveb and. also to rewind the web on the roll 8 after it has been played. All of these parts may be of usual construction and operation, as v Well understood in the art. In practice,the roll .8 is, as usual, removably held in the frame 5.

While the web is being transferred from one roll to the other, there is frequently a tendency of the iveb to crowd either to one end or the other ofthe roll on which the web is being wound. This results in Wear- A cross-bar 11 adapted to rest on top of the board 6 and posts 12 fixed in the bar 1i form a support for a pair of guides 13 which are adapted to be positioned to guide the edges of the web 9. Each guide 13 has studs 14 affixed thereto which are slidable in one of the posts 12. Each post is provided with a nut 15 and a .spring 16 around each stud and between the post 12 and guide 13 to press the uide inwardly. The nuts l5 serve as adjustable stops for the guide. Clamps comprising U-shaped members 1T adapted to straddle or extend around lthe front of the board 6 and thumb-screws 18 serve to adjustably secure the' guide-support to` said board.

4lVhen the clamps are loose, the guide-support and guides may be conjointly adjustable laterallyto bring theguides into correct posit-ionV toguide the web.. By adjusting the. nuts 15, the spacing of the 'guides may be varied according to the Width ofthe web.

The invention exemplifies a simple attachnient comprising a air of guides for the edge of the Web ivhich may be readily applied to the tracker board and readily adjusted thereon.

The invention is not to be understood as restricted to the details set forth, since these .may be modii'ied Within the scope of the appended claims7 'without departing from the spirit and scope of fthe invention.

Having thus described the invention. what I claim as neiv and desire to secure by Letters Patent, is:

1. An attachment for player-pianos comprising guides for the edges of the notesheet, and clamping devices extending around the face of the tracker bar and provided with` means between, which the tracker-bar will be clamped to secure the guides thereon.

2. An attachment for player pianos coniprising a pair of guides for the edges of the note sheet, a support at one side of the tracker-bar extending between the guides and on which both of the guides are mounted, means for securing the support to the tracker bar comprising a. clamping-device extending across the face of the tracker bar, and provided with means between which the tracker bar will be clamped to secure the support thereon 3. An attachment for player pianos com-l prising the combination of al pair of guides for the edges of the notesheet, asupporting bar-0nwhieh bothguides are mounted and 5 fitting against one side of the tracker bar, and clamping devices secured to saidv bar Aand extendingnround the face of the tracker bar', and screws carried by seid members and' adapted to press against the other side of the tracker bar so that' the latter will be clamped 10 in saidy devices to secure the support on lthe tracker-bar.

JOHN H. BATES. 

